Bottle-blowing machine.



A. SCHILLER.

BOTTLE BLOWING MACHINE.

APPLIPATION TILED JULY-2, 190s.

Patented June 8, 1909.

ADOLF SCHILLER, OF SOHONEBERG, NEAR BERLIN, GERMANY.

BOTTLE-BLOWING MACHINE.

Not 923,898.

l Speeificationo! Letters Patent;

' Patented June8, ieoo.

Application filed July 2, 1908. Serial No.,441,656.

To all whom it may concern: L.

Be it known that I ADOLF SCHILLER, citizen of the German Schoneberg, near'Berlin, Germany, engineer, have invented certain new and useful Improvements in Bottle-Blowin Machines, of which the following is a s eci cation.

My invention relates to ottle blowing machines and'has for its object to construct the same in such manner that they may be Worked successfully byhand. To that end the machine. is provided with two hand compressors, one of which is preferabl arranged elow, and the other above, a mo (1 table, so that the attendant can effect consecutively the reliminary blowing of the glassin a mol ,with the neck opening directed downward, and the finishing blowing in an u right moldin the same way in which the said 0 erations were hitherto efiected withmac ines with a separate compressor installation for supplying compressed air for blowing. The successful carrying out of hand work depends also on the fulfilment of a series of conditions which more particularly relate to the filling of thepress and preliminary molds with glass, and to the prelimin ary blowin rocess.

The of the press and the preliminary blowing mo (1 with glass'depends on a powerful suction exercised on theglass to be filled into the mold, which can beattained by means of a hand operated air compressoroiily when duringthe suction movement of the piston of the said compressor, no counter pressure on the pressure side of the piston as to be overcome, and whenjat the same time there is the possibility of stopping the movement of the iston as soon as the re- (pin-ed suction has een exercised. The conmovement of the piston is necessary also for the preliminary blowing process, as a perfect product can be obtained only when the preiininary blowing process has been carried up to a definite point. The instantaneous stopping of the movement of the piston at the end of the preliminaiy blowing operation is preferably combined with automatic equ aliziiig of the air-prcssurc in the c li iider on the one hand and with the atniospherebn the other hand.

A constructional lormof the machine which I fulfils the above mentioned conditions is Empire, and resident of ition of the instantaneous stopping of the neck 20.

shown by way of example in the accompany ing drawing, in whichi Figure 1 is a partial vertical section through the machine, partly in elevation.

Fig. 2 is a section on line 22 of Fig. 1, seenin the direction of the arrow shown 1n Fig. 1. Fig. 3 shows in side elevation the driving gear of the piston of the air com ressor, seen in the direction of the arrow s own at the top of Fig. 1.

The bed plate of the machine is marked 1. To the bottom of thetable or plate 1 is secured a cylinder 2 which is open at the end opposite to the table. jln the o linder 2 works a piston 3 which is connected y means of couphng parts 4, 5 to a shaft 6 supported in the machine frame and provided at one end with a hand lever 7. The hand lever 7 is provided with a catch 8 connected to a rod 9 having adjustably screwed on it a toothed member 10 capable of engaging with the teeth of-a fixed toothed sector 11. The curved end of rod 9 is connected to a lever 12 pivoted at 13 to hand lever 7 and carrying a valve 14. Mounted on'lever 7 is also a pipe 15 having its mouth below said valve 14 and connected by a flexible conduit 16 to-an opening 17 in the lateral wall of the cylinder 2 at a certain distance from the lower-face of the bed plate 1. 18 is a conduit leading from the cylinder 2 and connected by means of an opening 19 in the table 1 to the interior of the press and preliminary blowing mold. The press and preliminary blowing mold is proin'ded with a neck 20 which can be introduced into fixed guides 21 on the table 1, and with a main part 22 which can be opened in the well known manner. 23 is a press mandrel pivotally connected to a pedal 24 and heldby means of a spring 25 in the lowest position when not forced by the pressure/on the level-24 throu h the opening 19 of, the table 1 into the hodlow space of the 26 is a column on the upper table plate on which is mounted the air compressor 27. The said air compressor 27 is provided at the lower end with an adjustable nozzle 28 and in the interior with the piston 29 to the rod 30 of which is connected a hand lever 31. 32 is the finishing mold arranged on the table 1. The slia )e of the neck of the said finish- 111g1l10ld is t re same as that oithe press and preliminary blowing mold, so that it is also marked with the reference numeral 20.

The operation of the machine is'asfollows: Before molten glass is introduced into the reliminary mold 12, the press mandrel 23 s orced'into the hollow of the neck mold by depressing the pedal 24, whereupon the glass is introduced, the piston 3 in the cylinder 2 being at the same time caused to move vi -downward by-grasping the hand lever 7 suction ceases.

with latch Sand moving it, a suction being 10 glass which has been introduced. At the thus exercised through the conduit 18 on the same time the mouth of conduit is closed by the valve 14 operated by latch 8. This suction produced in cylinder 2 is sufficiently powerful as the cylinder space is completely 0 crf'on the pressure side of the piston 3 so t 'atpe ounter ressure is to be overcome.

Ass'oon as a su cient suction of the glassintroduced into the mold has taken place, the opening 17 is-connected by releasing latch 8 to the atmosphere for an instant, so that the At the same time the mandrel 19 ismoved down by releasing the pedal 24, so that it comes out from the mold neck 20. As soon as this has taken place, latch 8 is pressed again toward lever 7 and lever 7 sion of the air in the cylinder2be ins.

moved back, and in thatway the compres- Under theinfiuence of the action 0 the compressed air in the cylinder 2, the glass contained in the mold 22 is subjected to a pret'aneously sto ped.

during the preliminary blowing should be' liminary blowing. blowing should take place with the forma- ,tion of a hollow which gradually widens upward, and not merely with the formation of a simple longitudinal canal, it is necessary that the preliminary mold should have such a shape that the section curves of the mold in the longitudinal sectionof thesame should represent pproximately a straight line.

During t e preliminary blowing, care must be taken that the blowing process is interrupted at a given moment. This is effected by taking care that the air pressure within .the cylinder 2 is equalized with the pressure suddenly interrupted at the proper moment by connectlng the cylinder space with the atmosphere. Whether this is effected by catch 8 or by some other memberis immaterial, and it is also immaterial from which place the valve is o erated.

As soon as the pre 'minarv blowing process In order that the said has been completed, the mold 22 is opened, and the mold neck 20 with the prellmmarlly blown glass mass is withdrawn from the guides 21 and introduced in the well known manner in an inverted osition into the finishing mold 32. After t 1e finishing mold has been closed, the compressor nozzle ,28 1s screwed down, so that it comes to rest firmly on the collar, and the com lete blowing of the lass article is effected y operating the hand lever 31. The nozzle 28 is then again loosened, the mold 32 opened, and the finished article which remains in the neck mold 20, removed. The neck mold can then be opened and again used inthe pressand preliminary blowing-' mold.

Havin now particularly described and ascertaine( the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:

1. In a bottle blowing machine means adapted to suck molten glass introduced into a preliminary mold around a neck-core and for preliminarily blowing it in said mold, said means comprising a hand actuated air tension producer or compressor for drawing the glass into the preliminary mold and for preliminarily blowing the glass mass in said mold, said hand compressor bein inde endently operated vzilves means for sudc enly qnalizing the pressure between the interior of the compressor and the atmosphere.

2. In a bottle blowing machine means adapted to suck molten glass introduced into a preliminary mold around a neck-core and for preliminarily blowing it in said mold, said means comprising a cylinder with hand operated piston for drawing the glass into the preliminary mold and for preliminarily blowmg the glass mass in said mold, said cylinder being open at one end and provided with independently operated valves means for sud enly equalizing the pressure between the interior of the compressor and the atmos phere.

3. In a bottle blowing machine means adapted to suck molten glass introduced into a preliminary mold around a neck-core and for preliminarily blowing it in said mold, said means comprising a hand actuated air tension producer or compressor for drawing the glass into the preliminary mold and for preliminarily blowing the glass mass in said mold, sa1d hand'compressor bein provided with inde endently operated Va ves means for sud( enly equalizing the pressure between the interior of the compressor and the atmosphere and for fixing its driving member in any position.

4. In a bottle blowing machine means adapted to suck molten glass introduced into a prehmlnary mold around a neck-core and for prehmmarily blowing it in said mold, said means comprismg a hand actuated air ten- 1 provided with sion producer or compressor for drawing the glass into the preliminar mold and for preliminary blowing the g ass mass in said mold, said hand compressor being provided with interconnected means for suddenly equalizing the pressure between the interior of the compressor and the atmosphere andfor fixing its driving, member in any position. p

5. In a bottle blowing machine means adapted to suck molten glass introduced into a preliminary mold around a neck-core and for preliminarily blowing it in said mold, said means comprising a hand actuated air tension producer or compressor for drawing the I liminarily blowing the glass mass in said mold,

said hand compressor being provided with v interconnected means for suddenly equalizing the pressure between the interior of the compressor and the atmosphere and for fixin 1ts driving member in any position;

11 testimony whereof I have signed this specification in the presence of two subscribing witnesses.

ADOLF SCHILLER.

W ltnesses WOLDEMAR HAUPT,-

HENRY HASPER. 

